This chapter providedes a definition of "changing aunomatized movement patterns". It discusses the reasons, objectives and challenges for changing such movement patterns, with a particular focus on the proactive interference problem. We discussed four candidate approaches to solve these challenges. A commonality between most of these approaches is the assumption that it is necessary to break the automatism by explicitly guiding the individual`s focus to (aspects of) the old movement (note that this is not necessarily the same for (Directed Forgetting). Deconstructing the old, automatized behaviour and starting to modify it, is often the first necessary step for changing already existing skills and reduce interference. While there is promising evidence for the Method of Amplification of Error (MAE), its generalizability to other tasks and situations awaits further confirmation. The evidence speaking for the Old Way New Way approach and the Five-A Method has sometimes shown large performance improvements, yet, and this holds true for both approaches, the evidence is based mostly on case studies. A strong scientific assessment of the validity and reliability of either approach remains to be delivered. The finally presented method, that is, Directed Forgetting, has a long-standing history in psychological research, but has not yet been examined in the context of motor performance (with a few exceptions). While the initial evidence reveals promise, it remains " be determined whether the findings transfer to more complex sport behaviors.
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